Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rkmcinc.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 03:55:07 UTC · ↺ Refresh
MX Hostnames
- mx1-us1.ppe-hosted.com
- mx2-us1.ppe-hosted.com
MX Priorities
- mx1-us1.ppe-hosted.com: 0
- mx2-us1.ppe-hosted.com: 0
A / AAAA Records
- 66.135.19.53 ↩ 66-135-19-53.constant.com
Mail Server IPs
- 148.163.129.50 ↩ mx1-us1.ppe-hosted.com
- 67.231.154.162 ↩ mx1-us1.ppe-hosted.com
- 148.163.129.51 ↩ mx2-us1.ppe-hosted.com
- 67.231.154.163 ↩ mx2-us1.ppe-hosted.com
SOA Record
Raw SOA
ns5.worldnic.com namehost.worldnic.com 125050214 10800 3600 604800 3600
Primary NS (mname)
ns5.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125050214
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns5.worldnic.com
ns6.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com include:spf.jobdiva.com include:_spf-us.ppe-hosted.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- ppe-a3157b5d3b40bef4c8068bd336035e0cc0491c2e
- ppe-067bfc7092a6b6f3e346f61ecaebcdd67f5d236c
- sophos-domain-verification=50479af2d18901f93ecfc4bca6389f0897f7c501
- SPFv=spf1 include:us._netblocks.mimecast.com a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com include:spf.jobdiva.com include:_spf-us.ppe-hosted.com -all
- 0ed1fe018af7cfa359445c43ee8e864cdb86a03c78
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